Quin'cunx, n.
(kwĭn'kunks), n. [Lat., from quinque, five, and uncia, an ounce. The quincunx was marked by five small spots or balls.]
Sense 1. An arrangement or disposition of things by fives in a square, one being placed in the middle of the square; especially, an arrangement, as of trees, in squares consisting of five trees, one at each corner, and a fifth in the middle, this order being repeated indefinitely, so as to form a regular group with rows or ranks running in various directions.
Sense 2. (Astrol.) The position of planets when distant from each other five signs, or 150°. Hutton.
Sense 3. (Bot.) A quincuncial arrangement of the parts of a flower in æstivation. See QUINCUNCIAL.